16. Amy Adams. She did the live-action Disney princess thing in Enchanted. Wouldn't it also be kind of a coup to have a five-time Oscar-nominated actress play every little girl's favorite animated mermaid?

13. Lily Collins. Like Amy Adams, she's a veteran of the live-action-princess-movie community (she played Snow White in MirrorMirror). Though she's a natural brunette, The Mortal Instruments clearly demonstrated that she looks pretty fierce as a ginger, too.

10. Christina Hendricks. OK, Christina admittedly might be a little too come-hither for this movie if it's really meant to be "kid-friendly." But if Sofia wants an Ariel that will put heterosexual male butts in the seats, Christina is probably the way to go.

6. Bella Thorne. She's a great singer and dancer, plus she's only 16, which allows for plenty of years to make a few sequels. Hello, live-action The Little Mermaid II: Return to the Sea!

5. Jessica Chastain. She seems like a pretty serious choice for the role of a woman whose best friends are a flounder and a seagull, but her intensity could actually help her take The Little Mermaid to an amazing, indie-movie-for-adults place. She also looked damn good as Princess Merida in this photo shoot: